Cardhop supports searching directories, allowing you to use Cardhop with your organization's directory without having to save all the directory contacts to your Mac or your personal account.
Go to Preferences > Directories to add a directory to Cardhop.
Click 'Add Directory' and choose the account type your directory belongs to. Cardhop supports Google (Google Contacts and G Suite), Exchange, and Office 365 directories. You'll see the account appear in the list on the left.
Search for contacts from Cardhop as usual and any matching contacts from your directories will be shown in a section called Directory Matches.